Abstract
Many devices are designed to augment thrust and efficiency. Propeller’s blade plays a fundamental role in order to enhance efficiency. In this paper, DTMB4382 is selected as reference propeller in which blade reformation has been applied on the tip toward suction and pressure side and hydrodynamic performance have been discussed by using numerical investigation. Numerical results of the hydrodynamic characteristics of the propeller at the different blade tip angles are presented and discussed.
Highlights
Nowadays in regard to increasing marine fuel price, considerable efforts have been made to manage and enhance its consumption
Three types which worked by Ghaseemi and his colleagues are Voith Schneider [1], ducted propeller [2] and waterjet propulsion system [3]
The results show up to 4 percent augmentation of propeller performance efficiency where tip rake and especially positive rake was used
Summary
Nowadays in regard to increasing marine fuel price, considerable efforts have been made to manage and enhance its consumption. The nonplanar elements induced additional lift, positive when curved to the suction side and negative when curved to the pressure side; that is, wings with elements pointing toward the suction side were found to be the most efficient by having the best lift/drag ratio. Regarding to this idea, marine propeller designers have been applied this idea on ship propeller blade and they invented Kappel propeller which has rake angle to the suction side [5]. Kq 2π where JJ denotes advanced coefficient, nn refers to rotational speed in RPS (revolution per second), DD is propeller diameter and VVAA represents for propeller advanced velocity related to the ship's speed, T is thrust power, Q is Torque, ρρ denotes the density of water
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